Reduced proportion of decidual DC-SIGN+ cells in human spontaneous abortion

I Tirado-González1, R Muñoz-Fernández, O Blanco

  • 1Instituto de Biopatología y Medicina Regenerativa, Centro de Investigación Biomédica, Universidad de Granada, 18100 Armilla, Granada, Spain.

Placenta
|October 12, 2010
PubMed

Recent studies showed that some functions of decidual dendritic cells appear to be essential for pregnancy. In humans, decidual dendritic cells are identifiable by their expression of DC-SIGN. We compared the subpopulations of human decidual DC-SIGN+ cells from first-trimester normal pregnancies and spontaneous abortions by flow cytometry. In normal decidua, DC-SIGN+ cells expressed antigens associated with immature myeloid dendritic cells. In samples from spontaneous abortions, we detected decidual DC-SIGN+ cells with an antigen phenotype equivalent to that of DC-SIGN+ cells from normal pregnancies, but at a significantly lower proportion (P < 0.01). Our results support the hypothesis that dendritic cells play a role in normal or pathological human pregnancy outcomes.

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